[comp.windows.x] r4 clients under r3 server

randy@chinet.chi.il.us (Randy Suess) (01/13/90)

	I am new to X, and am running it under ISC386 UNIX.
I have their latest version, 1.1 which is based on R3.  I just
compiled R4 using the att.cf config which went fine (with a few minor 
tweeks because of having non-interlan networking), but cannot run any 
of the clients.  They all come up with the error message:

Error: Can't Open display

	Does this just mean the R4 clients just can't run under
a R3 server, or is there something obvious I have missed?

Email would probably be best, and I will summarize.

-randy

-- 
Randy Suess
randy@chinet.chi.il.us

rws@EXPO.LCS.MIT.EDU (Bob Scheifler) (01/14/90)

    Does this just mean the R4 clients just can't run under
    a R3 server, or is there something obvious I have missed?

I'm afraid I don't know anything about the ISC software, in particular what
their IPC connection mechanism is.  I do know that R4 "out of the box" works
fine with AT&T's XWIN server on the 6386 WGS, which is either R2 or R3 based.

Did a vanilla MIT R3 Xlib work?  If ISC has UNIX domain sockets, or TCP
sockets, then perhaps you failed to set -DUNIXCONN or -DTCPCONN in the
ConnectionFlags configuration parameter?